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Grade 7 Math

SCHOOL TOPICS

Sample Question

A shopkeeper mixes two variants of rices in ratio 3:2. The first variety costs 10 per kg, while other costs 20 per kg. If the mixed rice is sold at price of 9.8 per kg. Find the profit/loss incurred by shopkeeper.

Sample Question

If 90C - 270A = 923, and 360A + 90B = 1507, then what is the average of A, B and C?

A.

10

B.

9

C.

11

D.

7

Sample Question

Christina is in the process of making ice cream. She has heated all the ingredients to 50 °C and put them in refrigerator to freeze. If the cooling rate is 9 °C per hour, what will be the temperature in freezer after 13 hours ?

A.

-67

B.

167

C.

67

D.

-167

Sample Question

Ashani decides to pave an area measuring 10 m by 79.55 metres in his garden with terracotta tiles. He decides to buy tiles measuring 20 cm. by 185 cm. at the cost of J$ 40.38 per tile. What will be the total cost he incurs in paving his garden?